Learning to Interpret Line Graphs

Graphing Data (Line Plots and Bar Graphs)

by Brittani Williams-Stewart

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​What is a line plot?

• a way to display data using dots, x's or other symbols to represent each item.

  • A line plot shows us how many people fall into each category; you just have to count up the dots.

​Look at the Picture...

• ​Look at the line plot.

• ​Most graphs have a key. A key tells you the way to count on the graph.

• ​Each X on this graph will be worth how much????

Multiple Choice

How many X's should we have in all?

• 10

• 3

• 11

Multiple Choice

How many ribbons were 7 inches long?

• 1

• 5

• 2

• 3

​What are bar graphs?

• ​

  a way to display data using rectangles or bars of different sizes

• First ,look at the title to see what we are discussing.

• Next ,find the item you want info on.

• Look at the bar and slide your finger to see what number it stops on.

​

How to read a bar graph?!?

Multiple Choice

Which drink did 7 people pick as their favorite?

• Juice

• Milk

• Water

Multiple Choice

What type of movie received the least amount of votes?

• fantasy

• mystery

• foreign

• animated

Multiple Choice

How many votes did documentaries get?7

• 4

• none

• 7

Multiple Choice

What type of movie received the most votes?

• animated

• foreign

• mystery

• documentary

Multiple Choice

How many people picked milk as their favorite drink?

• 1

• 3

• 6